Tokyo – Japanese Member of Parliament Akihisa Shiozaki of the Liberal Democratic Party (LDP) recently met with Michael Serit, Anthropic's Head of International Affairs, to discuss the advanced artificial intelligence model, Claude Mythos. During their meeting at the Diet, Shiozaki conveyed significant public anxiety regarding the AI's capabilities and formally requested the Japanese government be granted access to Mythos without delay.
Claude Mythos, developed by the U.S. AI firm Anthropic, is an advanced AI model capable of autonomously identifying thousands of high-severity software vulnerabilities across major operating systems and web browsers. While designed for defensive cybersecurity tasks, its potent ability to uncover flaws has raised concerns about potential misuse and the acceleration of cyberattacks. Anthropic has restricted initial access to select technology firms and financial institutions globally.
In response to these developments, Japan's government and financial sector are taking proactive measures. Prime Minister Sanae Takaichi has ordered a cabinet-level review of the nation's cybersecurity strategy, emphasizing the need to bolster defenses against powerful new AI tools like Mythos. Finance Minister Satsuki Katayama also announced the establishment of a public-private working group to address cybersecurity risks to the Japanese financial system posed by the AI.
The urgency stems from expert warnings that Mythos can identify and exploit previously unknown vulnerabilities faster than companies can repair them. This capability could significantly accelerate cyberattacks, particularly in interconnected sectors like banking. Japan's three megabanks—Mitsubishi UFJ Financial Group, Mizuho Financial Group, and Sumitomo Mitsui Financial Group—are reportedly set to gain access to Claude Mythos by the end of May.
The request for swift access underscores Japan's strategic imperative to leverage advanced AI for national cybersecurity. By securing access to Mythos, the government aims to strengthen its defenses and proactively identify weaknesses before malicious actors can exploit them, thereby mitigating the public anxiety articulated by MP Shiozaki.
